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Earthquakes and Structures Volume 22, Number 5, May 2022 , pages 538- DOI: https://doi.org/10.12989/eas.2022.22.5.538 |
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Free vibration behaviour of multi-directional functionally graded imperfect plates using 3D isogeometric approach |
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Abdelhafid Lahdiri and Mohammed Kadri
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| Abstract | ||
| In this paper the free vibration frequencies of tri-directional functionally graded materials imperfect plate is investigated for Several plate geometries with two types of porosity (even and uneven) and different type of material configuration. The effect of several parameters such as power law index and boundary conditions have been investigated. For this purpose, an efficient computational method is developed and written under Matlab environment, based on a threedimensional modeling and the isogeometric method is used for the discretization of the structure based on NURBS (Nonuniform rational B-spline) basis functions. The results obtained by the present method are validated by the comparison with the results given by several authors in the literature. | ||
| Key Words | ||
| free vibration; isogeometric analysis; multi-directional functionally graded materials; porosity | ||
| Address | ||
| Abdelhafid Lahdiri:Laboratory of Solid Mechanics and Systems, University of M | ||